Certified models meet all ENERGY STAR requirements for AC-output models as listed in the Version 1.0 ENERGY STAR Program Requirements for Electric Vehicle Supply Equipment that are effective as of December 27, 2016, the Version 1.1 requirements effective as of March 31, 2021, or the Version 1.2 requirements effective as of June 20, 2023. A detailed listing of key efficiency criteria are available at https://www.energystar.gov/products/evse_key_product_criteria.